--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/x11/SDL_x11gl_c.h	Thu Apr 26 16:45:43 2001 +0000
@@ -0,0 +1,98 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Sam Lantinga
+    slouken@devolution.com
+*/
+
+#ifdef SAVE_RCSID
+static char rcsid =
+ "@(#) $Id$";
+#endif
+
+#ifdef HAVE_OPENGL
+#include <GL/glx.h>
+#include <dlfcn.h>
+#endif
+#include "SDL_sysvideo.h"
+
+struct SDL_PrivateGLData {
+    int gl_active; /* to stop switching drivers while we have a valid context */
+
+#ifdef HAVE_OPENGL
+    GLXContext glx_context;	/* Current GL context */
+    XVisualInfo* glx_visualinfo; /* XVisualInfo* returned by glXChooseVisual */
+
+    void * (*glXGetProcAddress)(const GLubyte *procName);
+
+    XVisualInfo* (*glXChooseVisual)
+		( Display*		dpy,
+		  int			screen,
+		  int*		attribList );
+
+    GLXContext (*glXCreateContext)
+		( Display*		dpy,
+		  XVisualInfo*	vis,
+		  GLXContext		shareList,
+		  Bool		direct );
+
+    void (*glXDestroyContext)
+		( Display* 		dpy,
+		  GLXContext		ctx );
+
+    Bool (*glXMakeCurrent)
+		( Display*		dpy,
+		  GLXDrawable		drawable,
+		  GLXContext		ctx );
+
+    void (*glXSwapBuffers)
+		( Display*		dpy,
+		  GLXDrawable		drawable );
+
+    int (*glXGetConfig)
+	 ( Display* dpy,
+	   XVisualInfo* visual_info,
+	   int attrib,
+	   int* value );
+
+    void (*glXReleaseBuffersMESA)
+	 ( Display* dpy,
+	   GLXDrawable drawable );
+
+#endif /* HAVE_OPENGL */
+};
+
+/* Old variable names */
+#define gl_active		(this->gl_data->gl_active)
+#define glx_context		(this->gl_data->glx_context)
+#define glx_visualinfo		(this->gl_data->glx_visualinfo)
+
+/* OpenGL functions */
+extern XVisualInfo *X11_GL_GetVisual(_THIS);
+extern int X11_GL_CreateWindow(_THIS, int w, int h);
+extern int X11_GL_CreateContext(_THIS);
+extern void X11_GL_Shutdown(_THIS);
+#ifdef HAVE_OPENGL
+extern int X11_GL_MakeCurrent(_THIS);
+extern int X11_GL_GetAttribute(_THIS, SDL_GLattr attrib, int* value);
+extern void X11_GL_SwapBuffers(_THIS);
+extern int X11_GL_LoadLibrary(_THIS, const char* path);
+extern void *X11_GL_GetProcAddress(_THIS, const char* proc);
+#endif
+extern void X11_GL_UnloadLibrary(_THIS);
+